caa a22 4500 463163664 CHVBK 20180406164755.0 cr unu---uuuuu 170326e20070501xx s 000 0 eng 10.1007/s11242-006-9057-4 doi (NATIONALLICENCE)springer-10.1007/s11242-006-9057-4 Implications of rainfall temporal resolution for soil-moisture and transpiration modeling [Elektronische Daten] [Michael Puma, Ignacio Rodriguez-Iturbe, Michael Celia, Andrew Guswa] Dimensionless groups of parameters characterizing an ecosystem are valuable indicators for the a priori assessment of the effect of rainfall data resolution on predictions of soil moisture and transpiration. Knowledge of these dimensionless groups enables identification of appropriate levels of rainfall data resolution, when using historical rainfall directly or when using it to derive rainfall model parameters for use in models of soil-plant-climate systems. Detailed simulation studies of the soil, plant, and climate systems in Colorado and Texas, highly resolved in time and vertical space, show that historical rainfall data resolved at the daily level allow accurate prediction of soil-moisture and transpiration dynamics for smaller time resolutions. These results support inferences based on the dimensionless groups. Furthermore, no significant improvement in the prediction of soil-moisture and transpiration dynamics is attained, when representing rainfall through a more complex Neyman-Scott model rather than the simple rectangular pulses Poisson model. Springer Science+Business Media, Inc., 2006 Vadose zone nationallicence Soil moisture nationallicence Transpiration nationallicence Rainfall data nationallicence Rainfall modeling nationallicence Neyman-Scott model nationallicence Soil-plant-atmosphere model nationallicence A e & B e : Parameters of evaporation weighting function [-] nationallicence A r & B r : Parameters of root weighting function [-] nationallicence b : Soil retention parameter [-] nationallicence C r : Root resistance coefficient [days/cm] nationallicence C s : Soil resistance coefficient [-] nationallicence D I : Index of dryness [-] nationallicence 〈 E max〉1 day : Maximum daily evaporation rate [cm/day] nationallicence 〈 ET max〉1 day : Maximum daily evapotranspiration rate [cm/day] nationallicence I I , t : Temporal infiltration index [-] nationallicence K sat : Saturated hydraulic conductivity [cm/day] nationallicence L : Duration of a rainfall pulse [days] nationallicence R I : Runoff index [-] nationallicence S h : Hygroscopic saturation [-] nationallicence S w : Saturation at wilting [-] nationallicence S * : Saturation at incipient stomatal closure [-] nationallicence X : Intensity of a rainfall pulse [days] nationallicence Y : Precipitation intensity [cm/day] nationallicence Z e : Evaporation depth [cm] nationallicence Δ : Depth of interception [cm] nationallicence ϕ : Porosity [-] nationallicence γ : Plant compensation factor [-] nationallicence η : Parameter of exponential distribution for rainfall-pulse duration [day−1] nationallicence λ : Arrival rate of rainfall pulse or storm event [day−1] nationallicence μ c : Mean number of cells per storm [cell/storm] nationallicence μ L : Mean duration of a rainfall pulse [days] nationallicence μ X : Mean intensity of a rainfall pulse [cm/day] nationallicence ξ : Parameter of exponential distribution for rainfall-pulse intensity [days/cm] nationallicence Ψ e : Entry pressure head [cm] nationallicence Ψ w : Plant fluid potential at wilting [cm] nationallicence Ψ * : Plant fluid potential at incipient stomatal closure [cm] nationallicence Puma Michael Department of Civil and Environmental Engineering, Princeton University, 08544, Princeton, NJ, USA aut Rodriguez-Iturbe Ignacio Department of Civil and Environmental Engineering, Princeton University, 08544, Princeton, NJ, USA aut Celia Michael Department of Civil and Environmental Engineering, Princeton University, 08544, Princeton, NJ, USA aut Guswa Andrew Picker Engineering Program, Smith College, 51 College Lane, 01060, Northampton, MA, USA aut Transport in Porous Media Kluwer Academic Publishers 68/1(2007-05-01), 37-67 0169-3913 68:1<37 2007 68 11242 https://doi.org/10.1007/s11242-006-9057-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11242-006-9057-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Puma Michael Department of Civil and Environmental Engineering, Princeton University, 08544, Princeton, NJ, USA aut NATIONALLICENCE 700 1- Rodriguez-Iturbe Ignacio Department of Civil and Environmental Engineering, Princeton University, 08544, Princeton, NJ, USA aut NATIONALLICENCE 700 1- Celia Michael Department of Civil and Environmental Engineering, Princeton University, 08544, Princeton, NJ, USA aut NATIONALLICENCE 700 1- Guswa Andrew Picker Engineering Program, Smith College, 51 College Lane, 01060, Northampton, MA, USA aut NATIONALLICENCE 773 0- Transport in Porous Media Kluwer Academic Publishers 68/1(2007-05-01), 37-67 0169-3913 68:1<37 2007 68 11242 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer